[Pacemaker] some problem about install pacemaker

hello when I use yum install -y pacemaker corosync heartbeat to install I meet a problem   libopenais-devel-0.80.5-15.1.x86_64 from installed has depsolving problems   -- Missing Dependency: openais = 0.80.5-15.1 is needed by package libopenais-devel-0.80.5-15.1.x86_64 (installed) Error:

[Pacemaker] the number of node pingd connect

follow is my ping command: 1.create ping resource  crm configure primitive pingd_data ocf:pacemaker:pingd meta target-role=stopped params name=pingd_num op start timeout=90s op stop timeout=100s op monitor interval=90s timeout=100s 2.set param crm_resource -p host_list -r pingd_data -v host_list

[Pacemaker] pingd problem about clone

Clone Set: pingd_data_net      Started: [ oss3 oss2 oss1 ]           I use the command :           crm_resource -g host_list -r pingd_data_net     to check the param host_list           the result is           pingd_data_net is active on more than one node, returning the default value for null  

[Pacemaker] check the num of pingd connect

 1.create ping resource      crm configure primitive pingd_data ocf:pacemaker:pingd meta target-role=stopped params name=pingd_num op start timeout=90s op stop timeout=100s op monitor interval=90s timeout=100s     2.set param     crm_resource -p host_list -r pingd_data -v host_list           The

[Pacemaker] node pending

Hi everybody: I start three node oss1,oss2,oss3 at the same time, however, crm_mon show oss2 node: pending. and oss1 oss3 online.Why? If one node in pending condition. what it can do?   thanks a lot:-) ___ Pacemaker mailing list:

Re: [Pacemaker] node pending problem

--- 10年9月21日，周二, jiaju liu liujiaj...@yahoo.com.cn 写道： 发件人: jiaju liu liujiaj...@yahoo.com.cn 主题: re:re:node pending problem 收件人: and...@beekhof.net 日期: 2010年9月21日,周二,下午2:19 Message: 1 Date: Mon, 20 Sep 2010 11:55:05 +0200 From: Andrew Beekhof and...@beekhof.net To: The Pacemaker

[Pacemaker] pacemaker stop problem

hi guys I use  command service openais force-stop to stop openais, It ofen waste a long time to stop or maybe run this command and no end. sometimes I use command service openais force-stop twice it will be ok, or I have to kill pocess. who has a better way to stop service. Thanks a lot:-) 

Re: [Pacemaker] pacemaker stop problem and crm node delete bug

/plain; charset=iso-8859-1 On Tue, Sep 28, 2010 at 10:00 AM, jiaju liu liujiaj...@yahoo.com.cn wrote: hi guys I use  command service openais force-stop to stop openais, It ofen waste a long time to stop or maybe run this command and no end. sometimes I use command service openais force-stop

Re: [Pacemaker] stop problem and crm node delete nodename is bug?

/plain; charset=iso-8859-1 On Tue, Sep 28, 2010 at 10:00 AM, jiaju liu liujiaj...@yahoo.com.cn wrote: hi guys I use  command service openais force-stop to stop openais, It ofen waste a long time to stop or maybe run this command and no end. sometimes I use command service openais force-stop

Re: [Pacemaker] crm resource move doesn't move the resource

Message: 2 Date: Thu, 7 Oct 2010 21:58:29 +0200 From: Pavlos Parissis pavlos.paris...@gmail.com To: The Pacemaker cluster resource manager     pacemaker@oss.clusterlabs.org Subject: Re: [Pacemaker] crm resource move doesn't move the resource Message-ID:    

[Pacemaker] apache could not start

Hi everybody   I use command crm configure primitive apache ocf:heartbeat:apache  params /opt/lampp/etc/httpd.conf meta resource-stickiness=1 target-role=stopped op start timeout=120s  op stop timeout=120s op monitor timeout=20s interval=10s op status timeout=30s; and crm resource start apache

[Pacemaker] problem about move node from one cluster to another cluster

hi everybody I use command crm openais stop first to stop openais service and then use rm -rf /var/lib/heartbear/crm/*  clear all information. then change multicast and start it in another cluster. the problem is sometimes it works I can use crm_mon command. and sometimes it doesn't work. I use

[Pacemaker] what is the meaning of stand_alone_ping

the screen says node1 pingd: [1927]: info: stand_alone_ping: Node 192.168.10.110 is unr eachable (read) and the node could not start   ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org

Re: [Pacemaker] problem about move node from one cluster to another cluster

updated the packages to the latest versions of corosync, pacemaker, etc. The tricky part was doing the migration procedure for upgrading production servers without service downtime, but that's another story. Regards, Dan jiaju liu wrote

[Pacemaker] stand_alone_ping stop node starting

Hi I reboot my node, and it appears node2 pingd: [3932]: info: stand_alone_ping: Node 192.168.10.100 is unreachable (read) and the node could not start    192.168.10.100  is ib network I will start ib after the node start, so do you have any idea let the node start first?Thanks very much.:-) 

[Pacemaker] stand_alone_ping stop Node start

Hi I reboot my node, and it appears node2 pingd: [3932]: info: stand_alone_ping: Node 192.168.10.100 is unreachable (read) and the node could not start    192.168.10.100  is ib network I will start ib after the node start, so do you have any idea let the node start first?Thanks very much.:-)   

Re: [Pacemaker] stand_alone_ping stop Node start

at 3:47 AM, jiaju liu liujiaju86 [at] yahoo wrote: Hi I reboot my node, and it appears node2 pingd: [3932]: info: stand_alone_ping: Node 192.168.10.100 is unreachable (read) and the node could not start 192.168.10.100 is ib network I will start ib after the node start, so do you

Re: [Pacemaker] update openais

, removed the RPMs, removed /var/lib/heartbeat/crm/* configured corosync, started it Et voila, it works. BTW, awesome job done to maintain compatibility between versions, the upgrade was truly seamless. Regards, Dan jiaju liu wrote:      Hi            Thank you for your help. I want to upgrade my

Re: [Pacemaker] update openais

? Thanks a lot   Hi, It's not mandatory to install ldirectord, I know it's not a dependency anymore. As for libesmtp see http://tinyurl.com/2uhdpzw jiaju liu wrote: Hi I have already installed rpm as follow: cluster-glue-1.0.5-1.el5.x86_64.rpm cluster-glue-libs-1.0.5-1.el5.x86_64.rpm cluster

Re: [Pacemaker] How many nodes can join a cluster?

--- 10年10月18日，周一, pacemaker-requ...@oss.clusterlabs.org pacemaker-requ...@oss.clusterlabs.org 写道： Hi I also use Pacemake manage Lustre system. Now I meet a question. If I mount and umount the same ost or mdt several times. It will last more then 3 minutes to mount this ost or mdt again.   

[Pacemaker] the way to delete resource completely

Hi everyone I use command crm resource stop Rsc to stop a resource and use crm resource cleanup at last use crm configure delete Rsc to delete resource. However I still found the resource's imformation in XML file.   my question is how to remove one resource imformation completely from cluster.

[Pacemaker] WARNING: status: operation not recognized

when I use crm configure refresh, it shows WARNING: status: operation not recognized What's wrong with it ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home:

Re: [Pacemaker] the way to delete resource completely

Hi, On Thu, Oct 21, 2010 at 01:51:25PM +0800, jiaju liu wrote: Hi everyone I use command crm resource stop Rsc to stop a resource and use crm resource cleanup at last use crm configure delete Rsc to delete resource. However I still found the resource's imformation in XML file. crm resource

[Pacemaker] How to delete orphan resource

Hi guys   I use command crm configure delete to delete a resource. However it shows datavol_mpath0  (ocf::heartbeat:Filesystem): ORPHANED Started oss2 By the way, I stop this resource first. and could not delete this orphaned resource Orphan resource are those for which there are entry in the

Re: [Pacemaker] How to delete orphan resource

datavol_mpath0 or something to that effect On Tue, Oct 26, 2010 at 3:30 AM, jiaju liu liujiaj...@yahoo.com.cn wrote: Hi guys    I use command crm configure delete to delete a resource. However it shows datavol_mpath0  (ocf::heartbeat:Filesystem):     ORPHANED Started oss2 By the way, I stop

Re: [Pacemaker] How to delete orphan resource

, jiaju liu liujiaj...@yahoo.com.cn wrote: Hi guys    I use command crm configure delete to delete a resource. However it shows datavol_mpath0  (ocf::heartbeat:Filesystem):     ORPHANED Started oss2 By the way, I stop this resource first. and could not delete this orphaned resource Orphan resource

Re: [Pacemaker] How to delete orphan resource(packages version)

  Thanks for your reply, I have used cleanup order, They still there. When I use crm resource show datavol_mpath0 it shows not exist. however when I use crm_mon it shows ORPHANED Started oss2. If?restart corosync servcie the service could not stop. fortunately,?this is doesn't happen

[Pacemaker] there is bug in pingd?

I want to start a filesystem it often failed I check the log it shows: I want to know there is bug in pingd my pacemaker package are pacemaker-1.0.8-6.1.el5 pacemaker-libs-devel-1.0.8-6.1.el5 pacemaker-libs-1.0.8-6.1.el5   openais packages are openaislib-devel-1.1.0-1.el5 openais-1.1.0-1.el5

[Pacemaker] do_lrm_invoke: bad input

I load the same  filesystem resource into cluster for serval times, at the beginning is ok however it start failed.I check the log;it shows:       Nov 09 11:13:36 oss3 crmd: [2968]: WARN: log_data_element: do_lrm_invoke: bad input   crm_xml Nov 09 11:13:36 oss3 crmd: [2968]: WARN:

[Pacemaker] cluster comunication problem??

the syslog as follows is these means there are some comunication problem in cluster  oss1 crmd: [11282]: info: abort_transition_graph: do_te_invoke:191 - Triggered transition abort (complete=0) : Peer Cancelled   oss1 crmd: [11282]: info: abort_transition_graph: do_te_invoke:191 - Triggered

Re: [Pacemaker] do_lrm_invoke: bad input_where I can get fixed

Fixed upstream a while back, please update   ok, thank you  and where I I load the same  filesystem resource into cluster for serval times, at the beginning is ok however it start failed.I check the log;it shows: Nov 09 11:13:36 oss3 crmd: [2968]: WARN: log_data_element: do_lrm_invoke:

Re: [Pacemaker] do_lrm_invoke: bad input_where I can get fixed

Fixed upstream a while back, please update   ok, thank you  by the way where I can get fixed and which one is I need. thanks a lot  I load the same  filesystem resource into cluster for serval times, at the beginning is ok however it start failed.I check the log;it shows: Nov

Re: [Pacemaker] stand_alone_ping stop Node start

Hi I reboot my node, and it appears node2 pingd: [3932]: info: stand_alone_ping: Node 192.168.10.100 is unreachable (read) and the node could not start   192.168.10.100  is ib network I will start ib after the node start, so do you have any idea let the node start first?Thanks very

[Pacemaker] start filesystem like this is right?

start resource steps step(1) crm configure primitive vol_mpath0 ocf:heartbeat:Filesystem meta target-role=stopped params device=/dev/mapper/mpath0 directory=/mnt/mapper/mpath0 fstype='lustre' op start timeout=300s  op stop timeout=120s op monitor timeout=120s interval=60s op notify timeout=60s

Re: [Pacemaker] start filesystem like this is right?

start resource steps step(1) crm configure primitive?vol_mpath0 ocf:heartbeat:Filesystem meta target-role=stopped params device=/dev/mapper/mpath0 directory=/mnt/mapper/mpath0 fstype='lustre' op start timeout=300s? op stop timeout=120s op monitor timeout=120s interval=60s op notify

Re: [Pacemaker] start filesystem like this is right?

Message: 6 Date: Sun, 14 Nov 2010 13:17:23 +0800 (CST) From: jiaju liu liujiaj...@yahoo.com.cn To: pacemaker@oss.clusterlabs.org Subject: Re: [Pacemaker] start filesystem like this is right? Message-ID: 476924.89659...@web15703.mail.cnb.yahoo.com Content-Type: text/plain; charset=iso-8859

[Pacemaker] service corosync start failed

Hi all If I use command like this  service corosync start it shows Starting Corosync Cluster Engine (corosync):   [FAILED]   and I do nothing just reboot my computer it will be OK　what is the reason? Thanks a lot   my pacemaker packageｓ　are  pacemaker-1.0.8-6.1.el5  

[Pacemaker] 回复： Pacemaker Digest, Vo l 36, Issue 80

On 11/22/2010 01:27 AM, jiaju liu wrote:      Hi all      If I use command like this       service corosync start      it shows      Starting Corosync Cluster Engine (corosync):               [FAILED]            and I do nothing just reboot my computer it will be OK?what is the      reason

Re: [Pacemaker] Starting Corosync Cluster Engine (corosync): failed

On 11/22/2010 01:27 AM, jiaju liu wrote:      Hi all      If I use command like this       service corosync start      it shows      Starting Corosync Cluster Engine (corosync):               [FAILED]            and I do nothing just reboot my computer it will be OK?what is the      reason

Re: [Pacemaker] Starting Corosync Cluster Engine (corosync): [FAILED]

On 11/22/2010 01:27 AM, jiaju liu wrote: ? ???Hi all ? ???If I use command like this ? ? ? service corosync start ? ???it shows ? ???Starting Corosync Cluster Engine (corosync):? ? ? ? ? ? ???[FAILED] ? ? ? ? ???and I do nothing just reboot my computer it will be OK?what

Re: [Pacemaker] Starting Corosync Cluster Engine (corosync):failed (resolve)

This problem has already resolved. The pacemaker version is not match with corosync. I change pacemaker to 1.0.9.1-1.e15 is OK. Thanks a lot \ ? ???Hi all ? ???If I use command like this ? ? ? service corosync start ? ???it shows ? ???Starting Corosync Cluster Engine (corosync):? ? ? ? ? ?

[Pacemaker] clone resource will stop if half node in cluster offline

Hi all I have 4 nodes node1,node2,node3,node4 in cluster. and start clone resource pingd. this ping a router. when node1 and node2 offline. The clone resource stopped. however the resource ipmi is ok. Is the feature of clone resource? If half node of cluster offline clone resource stop? 

Re: [Pacemaker] clone resource will stop if half node in cluster offline

strange, the disk could not  mount umount for more than 3 times   Please read our documentation, we're not here to read it to you. Quorum is one of the first things covered in clusters from scratch On Wed, Nov 24, 2010 at 11:39 AM, jiaju liu liujiaj...@yahoo.com.cn wrote: Hi all I have 4 nodes

Re: [Pacemaker] clone resource will stop if half node in cluster offline

I have 4 nodes node1,node2,node3,node4 in cluster. and?start clone resource pingd. this ping a router.?when node1 and node2 offline. The clone resource stopped. however the resource ipmi is ok. Is the feature of?clone resource? If half node of cluster offline clone resource stop?? thanks

[Pacemaker] There is something wrong with crm_node -i

Hi all I use crm_node -i order to check node id. the result is as follow   [r...@oss1 ~]# crm_node -i 1678456074 Unknown option 'i' crm_node - Tool for displaying low-level node information Usage: crm_node command [options] Options:  -?, --help   This text  -$, --version   Version information  

[Pacemaker] 回复： Pacemaker Digest, Vo l 36, Issue 102

Hi all I use crm_node -i order to check node id. the result is as follow [r...@oss1 ~]# crm_node -i 1678456074 Unknown option 'i' crm_node - Tool for displaying low-level node information Usage: crm_node command [options] Options: ?-?, --help ??This text ?-$, --version ??Version

Re: [Pacemaker] there is something wrong with crm_node -i?

Hi all I use crm_node -i order to check node id. the result is as follow [r...@oss1 ~]# crm_node -i 1678456074 Unknown option 'i' crm_node - Tool for displaying low-level node information Usage: crm_node command [options] Options: ?-?, --help ??This text ?-$, --version ??Version

[Pacemaker] lampp support

Hi all I want to add lampp into my HA cluster, unfortunately, I have not find lampp RA, is this mean I should write RA by myself or my resource-agent version is too old? my packages version are   cluster-glue-libs-devel-1.0.5-1.el5 cluster-glue-1.0.5-1.el5 cluster-glue-libs-1.0.5-1.el5  

[Pacemaker] why two corosync pid running

Hi all    One node corosync start is ok ,however, could not add into cluster, I found corosync (pid 20303 20296) is running. is this result in the problem? ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org

[Pacemaker] pacemaker support lampp

Hi all lampp is short for linux apache mysql php. So does our pacemaker supports it? ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org

[Pacemaker] 回复： Pacemaker Digest, Vo l 37, Issue 45

Yes offcause. Php runs inside apache, so you make rules for mysql and apache. Best regards Allan Jacobsen   Thank you for your reply, I haven't found lampp resource agent, so this means I must write a resource agent for lampp? would you please tell me more about what I should do ? Thanks a

[Pacemaker] apache resource agent own listen port information

apache default listen port is 80, which is used by IIC so I have to change apache listen port to 800. when I use service httpd start it is ok however when I use pacemaker to start it it failed it shows :apache_start_0 (node=mds1, call=57, rc=1, status=complete): unknown error the apache

[Pacemaker] warning information

There are a lot of warning information .Is there way erase them My pacemaker version is pacemaker-1.0.9.1-1.el5 10.53.11.159: WARNING: status: operation not recognized 10.53.11.159: WARNING: status: operation not recognized 10.53.11.159: WARNING: force-reload: operation not recognized

[Pacemaker] How to delete warning information

when I use command crm configure property start-failure-is-fatal=FALSE it shows WARNING: status: operation not recognized WARNING: status: operation not recognized WARNING: status: operation not recognized WARNING: status: operation not recognized WARNING: status: operation not recognized

Re: [Pacemaker] How to delete warning information(Is this a bug?)

when I use command crm configure property start-failure-is-fatal=FALSE it shows WARNING: status: operation not recognized WARNING: status: operation not recognized WARNING: status: operation not recognized WARNING: status: operation not recognized WARNING: status: operation not

[Pacemaker] gemated service

I use command crm configure primitive cfs_monitor lsb:gmetad meta resource-stickiness=1 op monitor  timeout=15 interval=15 op force-reload timeout=15   to start a resource gmetad,crm resource show shows cfs_monitor (lsb:gmetad) Started and service gmetad status shows gmetad is stopped my

[Pacemaker] start resource timeout

I use lustre filesystem in cluster,By default, the start, stop, and monitor operations in a Filesystem resource time out after 20 sec. Since some mounts in Lustre require up to 5 minutes or more,so, the default timeouts for these operations must be modified.I want to change it to 10min, is it

[Pacemaker] umount filesystem the node reboot

I use lustre in my HA-cluster,sometimes when I umount ost, the node will reboot.an 20 09:23:10 oss1 kernel: Lustre: server umount testTwo-OST0003 completeJan 20 10:28:56 oss1 kernel: Lustre: server umount testTwo-OST completeJan 20 10:28:58 oss1 kernel: exit dynlocks cacheJan 20 10:29:11

Re: [Pacemaker] Problem with rrp_mode

Hi, I have two network cards and configured corosync-1.2.7 with rrp_mode: active at first corosync-cfg -s tells me Printing ring status. Local node ID 1210452490 RING ID 0         id      = 10.10.38.72         status  = ring 0 active with no faults RING ID 1         id      =

[Pacemaker] paper about pacemaker

Hi Is there any paper write about pacemaker, I want to learn more and deeply about pacemaker and HA,Thanks a lot. ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home:

[Pacemaker] stonith reboot node

Hi all when I umount / mount my filesystem with HA, stonith often reboot the node,I have already ser dc-deadtime to 2min.it doesn't work.The log only says one node lost.my pacemaker version is :pacemaker-libs-devel-1.0.9.1-1.el5pacemaker-libs-1.0.9.1-1.el5pacemaker-1.0.9.1-1.el5 I think this

[Pacemaker] ipmi is ok?

I check log find information as follows, by the way my stonithd resource is ipmi,is it ok? Jan 30 10:51:43 mds1 external/ipmi[7686]: debug: ipmitool output: Chassis Power is on Jan 30 10:52:14 mds1 external/ipmi[7843]: debug: ipmitool output: Chassis Power is on

[Pacemaker] re：pacemaker won't start mysql in the second node

      Liang Ma       Contractuel | Consultant | SED Systems Inc.       Ground Systems Analyst       Agence spatiale canadienne | Canadian Space Agency       6767, Route de l'A?roport, Longueuil (St-Hubert), QC, Canada, J3Y 8Y9       T?l/Tel : (450) 926-5099 | T?l?c/Fax: (450) 926-5083      

[Pacemaker] using unison with mysql in HA

Hi listI find we all use drbd with mysql and pacemaker to realize HA. If I use unison to synchronize database, and then add mysql in HA cluster.Is it OK? ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org

[Pacemaker] resource could not migrate back

I have two node ha cluster node1 and node2 I start virtual IP resource in   cluster on node1, I set stick-ness=0,when node1 reboot virtual ip migrate to node2.however when node1 come back virtual IP still start on node2.Is there any way to migrate resource back to node1?Thanks a lot

[Pacemaker] corosync+pacemaker support disk heartbeating?

Hi allI think there is something wrong with cluster communication,result in node reboot. so I want to use disk heartbeating, I use corosync-1.2.2-1.1.el5 and pacemaker-1.0.9.1-1.el5.is there any guide tell me how to realize disk heartbeating with corosync and pacemaker?Thanks a lot

[Pacemaker] the version I use is stable?

the HA software I use meet a lot of strange problem, I am not sure the version I use is OK?cluster-glue-libs-devel-1.0.5-1.el5cluster-glue-libs-1.0.5-1.el5cluster-glue-debuginfo-1.0.5-1.el5cluster-glue-1.0.5-1.el5 resource-agents-1.0.3-2.el5

[Pacemaker] warnning information

when I use order crm configure ...it often shows WARNING: status: operation not recognizedWARNING: force-reload: operation not recognizedWARNING: force-reload: operation not recognizedWARNING: status: operation not recognizedWARNING: status: operation not recognizedWARNING: force-reload:

[Pacemaker] increase the debug level

Hi I use corosync+pacemaker. I set debug:on in corosync.conf.However there is nothing more output in log. If I want log to output more debug info what I should do?Thanks a lot ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org

[Pacemaker] filesystem could not mount after reboot

Hi all yesterday my lab balckout, this morning when I start pacemaker I find the filesystem could not be mounted, There is no use of crm resource cleanup,   after delete the files /var/lib/heartbeat/crm/*, and then restart corosync it works,I do not understand

[Pacemaker] The different between lanplus and open for IPMI

HI all I use ipmi as stonith resource. the interface I use lanplus first, however, it doesn't work. I check log,it shows nodea external/ipmi[3433]: ERROR: error executing ipmitool: Error: Unable to establish IPMI v2 / RMCP+ session^M Unable to get Chassis Power Status  so I change interface

Re: [Pacemaker] The different between lanplus and open for IPMI

Hi, On Tue, May 24, 2011 at 03:31:01PM +0800, jiaju liu wrote: HI all I use ipmi as stonith resource. the interface I use lanplus first, however, it doesn't work. I check log,it shows nodea external/ipmi[3433]: ERROR: error executing ipmitool: Error: Unable to establish IPMI

Re: [Pacemaker] IPMI

Hi, 25.05.2011 03:49, jiaju liu wrote:       Hi,             On Tue, May 24, 2011 at 03:31:01PM +0800, jiaju liu wrote:             HI all I use ipmi as stonith resource. the interface I use      lanplus first, however, it doesn't work. I check log,it shows nodea      external/ipmi[3433

[Pacemaker] Is there any limitattion of resource name length

HI　all  ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs:

[Pacemaker] Is there any limitattion of resource name length

Hi all  I intend to use wwid as resource name which is 32bit, so are there any limitations of resource name? 32bit  is ok?___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: